In June 2018, the Alliance for Green Heat profiled the team behind the 509 Optimum energy log stove ahead of the Wood Stove Design Challenge. The article explains the stove’s gravity-fed manufactured-log design and the work being done at that time.
This is historical coverage of the original Optimum, published under the former 509 branding. Its discussion of testing and classification describes the development period; it should not be read as a statement about the current certification status of every Flame Innovation stove.
Owners can find Optimum product and replacement-part information or contact Flame Innovation for legacy-model support. The original publisher’s feature is linked below.
